witch chip should i get and from where

i wana get a chip for my wii its a new one 4.3u and i wana be able to run flash/usb drive iso's. also dvd's but not stressing the dvds just gotta have the drive still there cuz dad likes playing his golf game im sure i can just add that game to usb but for most part not trying to change everything just a simple plug and play chip for usb ;]

sry if i posted this in wrong spot really wasnt sure were to ask. thanks again peep awsome site been on it non stop past few days